# Supporting a glass floor panel as a part of a floating deck

We have built a floating deck attached to the rear of a brick house with a below-grade basement. Now, we have some rear basement well windows that the deck framing is built around. In order to still have some natural daylight come through the windows, we are looking to place some glass panels on the floor of the deck, above the well windows.

Questions:

1. Is this stable? A glass calculator based on my dimensions of 38 inches X 20 inches X 1/2 inch thick states that the load can be > 600 lbs assuming supports are 3 ft. apart.
2. On 3 sides (of the deck), we have built a wood bracket intended to support the tempered glass panel that is about an inch thick - in addition to this, we are planning to add a 4th edge bolted to the brick side, on the house building. Is this 4th edge necessary or can 3 edges be good enough to support this? Assuming that a person of reasonable weight (<250 lb) will be able to stand on it.
3. If so, for the 4th edge, is there some kind of metal L-shaped bracket that can be bolted to the house building? I'm thinking of a bracket shaped like those used to support manhole covers, but my search for it hasn't yielded any results.

Here's a picture:

• Some pictures would really help with this.
– JACK
Aug 9, 2019 at 19:57
• Finally, someone who considers my weight normal... Aug 9, 2019 at 20:01
• So did you re-run the calculation as your supports are more than 3ft apart? Or are you assuming a safety margin somewhere? Aug 9, 2019 at 20:06
• With a 38 inch wide panel, and each support being an inch thick, they would be 3ft apart, wouldn't they?
– rs79
Aug 9, 2019 at 20:16
• "floating deck attached to the rear of a brick house" Which is it, floating or attached? They are quite different in certain very key, fundamental ways. If it is designed as floating then you must NOT attach it to a building. And if it is designed as attached and turns out to be "floating" then there is something seriously wrong with the design or implementation. The answers to the glass support question will vary depending on whether the deck is floating or attached. Aug 9, 2019 at 20:26